Prisma was a land grab because the original authors didn't make an app. Hell I started working on my own version at the time since it was such an obvious app.

The original authors finally got around to making their DeepArt app, so we have at least two players in this space atm.

I think either of these two players will incorporate this research, but there's no clear incentive for anyone else to try and get in on this market now. It's not clear that there's a whole lot of money to be made here, but who knows maybe usage will explode. I mostly expect an acquisition.